CN112144369B

CN112144369B - Construction method of municipal bridge

Info

Publication number: CN112144369B
Application number: CN202011092640.1A
Authority: CN
Inventors: 袁浩; 林立豪
Original assignee: Fujian Zhongshe Engineering Consulting Co ltd
Current assignee: Fujian Zhongshe Engineering Consulting Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-12-03
Anticipated expiration: 2040-10-13
Also published as: CN112144369A

Abstract

The application discloses a municipal bridge structure and a construction method, which relate to the technical field of municipal bridges and comprise bridge piers and prefabricated bridge plates arranged on the bridge piers, wherein the prefabricated bridge plates comprise a roadway and sidewalks distributed on two sides of the roadway; the buffer belt is provided with a buffer assembly, the buffer assembly comprises a plurality of buffer plates which are arranged at intervals, energy releasing plates are fixedly connected to one sides of the buffer plates which are close to each other, the energy releasing plates between the buffer plates are fixedly bonded, and the energy releasing plates between two adjacent buffer plates form a V-shaped structure; the buffer plate is parallel to the guardrails, the buffer plate is connected to the buffer belt in a sliding mode, and springs are connected between the buffer plate and the guardrails close to the buffer plate. The application improves the condition that the out-of-control vehicle causes danger to the pedestrian on the pedestrian path.

Description

Construction method of municipal bridge

Technical Field

The application relates to the technical field of municipal bridges, in particular to a municipal bridge structure and a construction method.

Background

The municipal bridge refers to a bridge built on a river channel, an overpass of a road and a road, an overpass of a road crossing a railway and a pedestrian overpass in an urban area.

The structure of the existing bridge, referring to fig. 4, comprises a bridge pier 1 and a prefabricated bridge section 24 installed on the bridge pier 1, wherein the bridge comprises a roadway 21 for vehicles to go and go, and sidewalks 22 arranged on two sides of the roadway, and fences 7 are installed on two side edges of the prefabricated bridge section 24.

In the above-described technique, if a vehicle on a traffic lane runs out of control and collides with the sidewalk 22, there is a case where there is a danger to pedestrians on the sidewalk 22.

Disclosure of Invention

In order to improve the condition that the vehicles out of control cause danger to the pedestrians on the pedestrian path, the application provides a municipal bridge structure and a construction method.

In a first aspect, the application provides a municipal bridge structure, which adopts the following technical scheme:

a municipal bridge structure comprises bridge piers and prefabricated bridge plates installed on the bridge piers, wherein each prefabricated bridge plate comprises a roadway and sidewalks distributed on two sides of the roadway, guardrails are arranged on two sides of each sidewalk, a buffer belt is arranged between the roadway and each sidewalk, buffer grooves are formed in the buffer belts, and the buffer grooves are arranged at intervals along the length direction of a bridge deck of the prefabricated bridge plate;

the buffer belt is provided with a plurality of groups of buffer assemblies along the length direction of the bridge floor, each buffer assembly comprises a plurality of buffer plates which are arranged at intervals, energy releasing plates are fixedly connected to one sides of the buffer plates which are close to each other, an included angle between one side of each energy releasing plate which is close to each buffer plate and each buffer plate is an acute angle, the energy releasing plates between the buffer plates are fixedly bonded, and the energy releasing plates between two adjacent buffer plates form a V-shaped structure;

the buffer plate is parallel to the guardrails, the buffer plate is connected to the buffer belt in a sliding mode, part of the buffer plate is located above the buffer groove, a spring is connected between the buffer plate and the guardrail close to the buffer plate, one end of the spring is fixedly connected with the buffer plate, and the other end of the spring is fixedly connected with the guardrails.

By adopting the technical scheme, the buffer belt is arranged between the sidewalk and the roadway, if a vehicle running on the roadway is out of control and collides with the sidewalk, the vehicle needs to pass through the buffer belt, the vehicle firstly collides with the buffer plate when passing through the buffer belt, and when the buffer plate is impacted, the two energy release plates which are bonded with each other are broken due to the impact force of the energy release plates between the buffer plates, so that the force of the vehicle impacting the buffer plates is partially decomposed, and the vehicle is buffered to a certain extent;

when the vehicle continuously impacts the buffer plates, the energy release plates between the buffer plates are separated by impact, so that after the buffer plates are separated from each other, the spring can buffer the vehicle when the vehicle continuously impacts; when the buffer board and the spring buffer the vehicle, the wheels of the vehicle can slide into the buffer groove, so that the spring buffers the vehicle, and meanwhile, the vehicle is not easy to continue to impact forwards, and the safety of pedestrians on a sidewalk can be well guaranteed.

Through the multiple groups of buffer structures, when the vehicle collides with the buffer structures, other buffer structures which are not collided are not damaged by collision, and the buffer structure can also play a buffer role for other vehicles.

Preferably, the buffer board fixedly connected with guide rod that is closest to the guardrail, set up the movable hole that is used for supplying the guide rod activity on the guardrail, the one end of guide rod is located the movable hole, the spring housing is established on the guide rod.

Through adopting above-mentioned technical scheme, the spring housing is established on the guide rod, when the spring received the striking when compressed, through the guide rod, can make the spring play the cushioning effect to the vehicle better at the in-process of compression, offers some movable holes on the guardrail and can carry on spacingly to the guide rod.

Preferably, the movable hole penetrates through the guardrail, and the plastic film for plugging the movable hole is coated on the guardrail.

Through adopting above-mentioned technical scheme, when the buffer board was hit by the vehicle and is constantly compressed spring, the guide rod probably passed the activity hole, if the guide rod passes the activity hole when, can extrude the plastic film earlier and stab the plastic film at last, when the plastic film was punctured to the guide rod, also can release some impact.

Preferably, the inner wall of one side of the buffer groove close to the roadway is obliquely arranged, and the lower end of the buffer groove is positioned at the groove bottom of the buffer groove.

Through adopting above-mentioned technical scheme, the one side inner wall that the buffer trench is close to the roadway is the slope setting, when the vehicle strikes in the buffer trench behind the buffer board, can get into along the slope side of buffer trench to reduce the drop sense when the vehicle gets into in the buffer trench.

Preferably, a drain hole is formed in the buffer groove.

Through adopting above-mentioned technical scheme, through the wash port, when the rainwater got into in the buffer trench, can flow out through the wash port, water is difficult for gathering in the buffer trench.

Preferably, the horizontal plane of pavement is higher than the horizontal plane of roadway, be provided with the locating component who is used for having a positioned state to the buffer board on the pavement, locating component includes locating lever and constant head tank, the constant head tank is seted up on the pavement and is close to one side of buffer zone, the one end and the buffer board fixed connection of locating lever, the other end sliding connection of locating lever is in the constant head tank.

Through adopting above-mentioned technical scheme, pass through spring coupling back together when buffer board and guardrail, the buffer board passes through the locating lever and pegs graft in the constant head tank, makes whole buffering subassembly can be fixed a position on the bridge better, and when vehicle striking buffer board, during buffer board compression spring, the buffer board passes through locating lever and constant head tank sliding connection.

Preferably, a cover plate is arranged on the guard rail close to the buffer strip.

By adopting the technical scheme, the pedestrian on the sidewalk is not easy to see the spring on the guardrail through the covering plate, and the spring can be protected to a certain extent.

In a second aspect, the application provides a construction method of a municipal bridge, which adopts the following technical scheme:

a construction method of a municipal bridge comprises the following steps,

s1, prefabricating the bridge plate, pouring a roadway and a sidewalk on the prefabricated bridge plate, and reserving a buffer zone between the roadway and the sidewalk;

s2, prefabricating a buffer strip, pouring a plurality of buffer ditches on the buffer strip, wherein the buffer ditches are uniformly arranged at intervals, the interval distance between the buffer ditches is less than one meter, when the buffer ditches are poured, the inner walls of the buffer ditches close to one side of the roadway are obliquely arranged, a drain pipe is arranged on the prefabricated bridge plate, and one end of the drain pipe is communicated with the buffer ditches;

s3, forming positioning grooves, and reserving spaces for forming the positioning grooves on the prefabricated bridge plate when pouring the sidewalk of the prefabricated bridge plate;

s4, mounting the prefabricated bridge plate, and after the bridge piers are mounted, fixedly mounting one prefabricated bridge plate between two adjacent bridge piers;

s5, installing a guardrail, wherein the guardrail is formed by pouring concrete;

s6, installing a buffer assembly, wherein the buffer assembly comprises a plurality of buffer plates which are arranged at intervals, energy releasing plates are installed on the sides, close to each other, of the buffer plates, the energy releasing plates are fixedly bonded with the buffer plates in an inclined state, the buffer plates are connected together through the energy releasing plates, and the energy releasing plates between every two adjacent buffer plates are fixedly bonded and form a V-shaped structure;

s7, installing the buffer assemblies on the buffer belt in a sliding manner to enable the buffer plates and the guardrails to be parallel to each other, wherein the buffer assemblies are provided with a plurality of groups and are uniformly distributed along the length direction of the bridge;

s8, installing a buffer plate close to the sidewalk on the sidewalk, wherein a positioning rod is fixedly connected to one side of the buffer plate close to the sidewalk and is in sliding connection with the positioning groove in the sidewalk;

s9, a spring is connected between the guardrail close to the buffer plate and the buffer plate, one end of the spring is fixedly connected with the guardrail, and the other end of the spring is fixedly connected with the buffer plate;

s10, fixedly connecting a guide rod to the buffer plate close to the first guardrail, forming a movable hole for the guide rod to move on the guardrail, positioning the guide rod in the movable hole and sleeving the spring on the guide rod;

and S11, penetrating the movable hole through the guardrail, coating a plastic film on the guardrail, and sealing one end of the movable hole, which is far away from the buffer plate, by the plastic film.

Through adopting above-mentioned technical scheme, buffer trench, constant head tank and drain pipe are all prefabricated, so the construction is more convenient, a plurality of buffer trenches mutually independent, and a plurality of buffering subassemblies are also mutually independent, so when the vehicle strikeed the buffer board on, all the other buffer structure that do not have by the striking can continue to play the cushioning effect. The energy releasing plate is fixedly bonded with the buffer plate, the energy releasing plate and the energy releasing plate are fixedly bonded with each other, when a vehicle impacts the buffer plate, the energy releasing plate between the buffer plates can be well impacted, and therefore the buffer plate has a buffer effect on the vehicle;

when the buffering subassembly cushions the vehicle, the vehicle can get into in the buffering ditch to make the automobile body part of vehicle be located the buffering ditch, the prevention vehicle that can be better crosses the guardrail and causes danger to the pedestrian on the people's pavement.

In summary, the present application includes at least one of the following benefits:

1. when the buffer plates are impacted, the energy releasing plates which are mutually bonded between the buffer plates are broken, so that the vehicle is buffered, and part of impact force on the buffer plates can be released;

2. when the vehicle impacts the buffer plates and the energy release plates between the buffer plates are broken, the buffer plates are not easy to block the vehicle, so that the vehicle can slide into the buffer groove, the wheels of the vehicle are easy to sink into the buffer groove, the vehicle is not easy to continue to impact forwards, and the safety of pedestrians on a sidewalk is well guaranteed.

Drawings

FIG. 1 is a schematic view of the overall structure of the municipal bridge structure according to the embodiment;

FIG. 2 is a schematic structural view of a prominent buffer trench in the municipal bridge structure according to the embodiment;

FIG. 3 is an enlarged schematic view at A of FIG. 1;

fig. 4 is a related art municipal bridge construction.

Description of reference numerals: 1. a bridge pier; 2. prefabricating a bridge plate; 21. a roadway; 22. a sidewalk; 23. a buffer zone; 231. a buffer trench; 232. a drain hole; 24. prefabricating a bridge section; 3. a guardrail; 31. a movable hole; 32. a plastic film; 4. a buffer assembly; 41. a buffer plate; 411. a guide rod; 42. an energy releasing plate; 5. a positioning assembly; 51. positioning a rod; 52. positioning a groove; 6. a spring; 7. and (4) fencing.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses municipal bridge structure. Referring to fig. 1, the bridge structure comprises bridge piers 1 and prefabricated bridge plates 2 installed on the bridge piers 1, wherein one section of the prefabricated bridge plate 2 is connected between two bridge piers 1. The installation technology of the prefabricated bridge plate 2 is the prior art, and the description of this embodiment is omitted.

Referring to fig. 1, the spliced bridge comprises a roadway 21 and sidewalks 22 distributed on two sides of the roadway 21, the horizontal plane of the sidewalks 22 is higher than the plane of the roadway 21, two sides of the sidewalks 22 are provided with guardrails 3, and the guardrails 3 are fixedly mounted on the surfaces of the sidewalks 22. The guard rail 3 of the present embodiment is cast of concrete. A buffer strip 23 is arranged between the roadway 21 and the sidewalk 22, and the buffer strip 23 and the roadway 21 are on the same horizontal plane.

Referring to fig. 2, the buffer strip 23 is provided with buffer grooves 231, the buffer grooves 231 are distributed at intervals along the length direction of the prefabricated bridge plate 2, and the interval distance between the buffer grooves 231 is less than one meter. The inner wall of the buffer groove 231 on the side away from the sidewalk 22 is inclined, and when a vehicle enters the buffer groove 231, the wheels of the vehicle move downwards along the inclined side wall, and the inclined inner wall plays a guiding role.

Referring to fig. 2, a drain hole 232 is formed in the buffer groove 231, and one end of the drain hole 232 extends out of the outer wall of the prefabricated bridge plate 2. When raining, the water in the buffer trench 231 can flow out of the bridge through the drain holes 232, and the drainage speed of the bridge deck can be accelerated.

Referring to fig. 1, the buffer belt 23 is further provided with a plurality of buffer assemblies 4, and the buffer assemblies 4 are uniformly distributed along the length direction of the bridge deck.

Referring to fig. 2 and 3, the damping member 4 includes a plurality of damping plates 41 arranged at intervals, an energy releasing plate 42 is bonded to a side of the damping plates 41 adjacent to each other, and an included angle between the side of the energy releasing plate 42 adjacent to the damping plates 41 is an acute angle. The energy releasing plates 42 between the buffer plates 41 are adhered and fixed to each other, and the energy releasing plates 42 between two adjacent buffer plates 41 form a V-shaped structure.

Referring to fig. 2 and 3, the buffer plate 41 and the guard rail 3 are parallel to each other. The lower end of the buffer plate 41 is slidably connected to the surface of the buffer belt 23, a part of the buffer plate 41 is located above the buffer groove 231, and the rest of the buffer plates 41 are respectively located on both sides of the opening edge of the buffer groove 231.

Referring to fig. 2, the sidewalk 22 is provided with a positioning unit 5 for positioning the buffer plate 41, and the positioning unit 5 includes a positioning rod 51 and a positioning groove 52. The positioning groove 52 is arranged on one side of the sidewalk 22 close to the buffer belt 23, one end of the positioning rod 51 is fixedly connected with the buffer plate 41, and the other end of the positioning rod 51 is connected with the inner wall of the positioning groove 52 in a sliding mode. A plurality of positioning rods 51 are fixedly connected to one buffer plate 41, and positioning grooves 52 on the sidewalk 22 correspond to the positioning rods 51. The buffer plate 41 is plugged onto the walkway 22 by means of a positioning bar, so that the buffer plate 41 can be positioned better in a fixed position.

Referring to fig. 2, a spring 6 is connected between the buffer plate 41 and the guardrail 3 adjacent to the buffer plate 41, one end of the spring 6 is fixedly connected with the buffer plate 41, and the other end of the spring 6 is fixedly connected with the guardrail 3. The spring force of the spring 6 is large, and when the vehicle hits the bumper plates 41 and the energy releasing plate 42 between the bumper plates 41 is broken, the impact force to the spring 6 causes only a slight deformation of the spring 6. When the vehicle hits the bumper plate 41 closest to the guard rail 3 after the energy releasing plates 42 between the bumper plates 41 are all broken, the spring 6 receives a relatively large impact force, so that the spring 6 is continuously compressed.

Referring to fig. 2, the buffer plate 41 closest to the guardrail 3 is fixedly connected with a guide rod 411, the guardrail 3 is provided with a movable hole 31 for the guide rod 411 to move, one end of the guide rod 411 is located in the movable hole 31, and the spring 6 is sleeved on the guide rod 411. When the spring 6 can be compressed by the guide rod 411, the vehicle can be better cushioned.

Referring to fig. 2, the activity hole 31 penetrates the guard rail 3, and the guard rail 3 is covered with a plastic film 32 for blocking the activity hole 31. When the cushion plate 41 compresses the spring 6, the guide bar may hit the plastic film 32. If the guide bar box plastic film 32 breaks, part of the impact force received on the cushion plate 41 can be released, thereby enabling the vehicle to be further cushioned.

Referring to fig. 2, a covering plate for covering the elastic member is provided above the guard rail 3 adjacent to the buffer plate 41. The spring 6 is not easily visible to passers-by on the sidewalk 22 by the covering plate, thereby providing a good protection for the elastic member.

The embodiment of the application provides a municipal bridge structure's implementation principle does:

the buffer belt 23 is arranged between the sidewalk 22 and the roadway 21, if a vehicle running on the roadway 21 is out of control and is about to collide with the sidewalk 22, the vehicle needs to pass through the buffer belt 23, when passing through the buffer belt 23, the vehicle firstly collides with the buffer plates 41, when the buffer plates 41 are collided, the two energy release plates 42 which are mutually bonded are collided because of the collision of the energy release plates 42 between the buffer plates 41, so that the force of the vehicle colliding with the buffer plates 41 is partially decomposed, and the vehicle is buffered to a certain extent;

when the vehicle continuously impacts the buffer plates 41, the energy release plates 42 between the buffer plates 41 are separated by impact, so that after the buffer plates 41 are separated from each other, the spring 6 can buffer the vehicle when the vehicle impacts the buffer plate 41 closest to the guardrail 3; when the buffer plate 41 and the spring 6 buffer the vehicle, the wheels of the vehicle slide into the buffer groove 231, so that the spring 6 buffers the vehicle, and meanwhile, the vehicle is not easy to continue to collide forwards, and the safety of pedestrians on the sidewalk 22 can be well guaranteed.

The application also discloses a construction method of the municipal bridge, which comprises the following steps,

s1, prefabricating the bridge plate 2, pouring the roadway 21 and the sidewalk 22 on the prefabricated bridge plate 2, and reserving a buffer belt 23 between the roadway 21 and the sidewalk 22, wherein the width of the buffer belt 23 is smaller than that of the sidewalk 22;

s2, prefabricating the buffer strip 23, pouring the buffer groove 231 on the buffer strip 23, wherein when the buffer groove 231 is poured, the inner wall of one side, close to the roadway 21, of the buffer groove 231 is obliquely arranged, a drain pipe is installed on the prefabricated bridge plate 2, and one end of the drain pipe is communicated with the buffer groove 231;

s3, forming positioning grooves 52, and reserving a space for forming the positioning grooves 52 on the prefabricated bridge plate 2 when pouring the sidewalk 22 of the prefabricated bridge plate 2;

s4, mounting the prefabricated bridge plate 2, and after the piers 1 are mounted, fixedly mounting one prefabricated bridge plate 2 between every two adjacent piers 1;

s5, installing a guardrail 3, wherein the guardrail 3 is formed by pouring concrete;

s6, installing a buffer component 4, wherein the buffer component 4 comprises a plurality of buffer plates 41 which are arranged at intervals, energy releasing plates 42 are installed on the sides, close to each other, of the buffer plates 41, the energy releasing plates 42 are fixedly adhered to the buffer plates 41 in an inclined state, the buffer plates 41 are connected together through the energy releasing plates 42, the energy releasing plates 42 between every two adjacent buffer plates 41 are fixedly adhered, and a V-shaped structure is formed;

s7, slidably mounting the buffer assemblies 4 on the buffer belt 23 to enable the buffer plates 41 and the guardrails 3 to be parallel to each other, wherein the buffer assemblies 4 are provided with a plurality of groups, and the buffer assemblies 4 are uniformly distributed along the length direction of the bridge;

s8, installing the buffer plate 41 close to the sidewalk 22 on the sidewalk 22, wherein a positioning rod 51 is fixedly connected to one side, close to the sidewalk 22, of the buffer plate 41, and the positioning rod 51 is in sliding connection with a positioning groove 52 on the sidewalk 22;

s9, a spring 6 is connected between the guardrail 3 close to the buffer plate 41 and the buffer plate 41, one end of the spring 6 is fixedly connected with the guardrail 3, and the other end of the spring 6 is fixedly connected with the buffer plate 41;

s10, a guide rod 411 is fixedly connected to the buffer plate 41 close to the first guardrail 3, a movable hole 31 for the guide rod 411 to move is formed in the guardrail 3, the guide rod 411 is located in the movable hole 31, and the spring 6 is sleeved on the guide rod 411;

and S11, penetrating the movable hole 31 through the guardrail 3, covering the plastic film 32 on the guardrail 3, and blocking one end of the movable hole 31 far away from the buffer plate 41 by the plastic film 32.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A construction method of a municipal bridge is characterized by comprising the following steps: comprises the following steps of (a) carrying out,

s1, prefabricating the bridge plate (2), pouring a roadway (21) and a sidewalk (22) on the prefabricated bridge plate (2), and reserving a buffer zone (23) between the roadway (21) and the sidewalk (22);

s2, prefabricating the buffer belt (23), pouring a plurality of buffer ditches (231) on the buffer belt (23), wherein the buffer ditches (231) are uniformly arranged at intervals, the interval distance between the buffer ditches (231) is less than one meter, when pouring the buffer ditches (231), the inner wall of one side, close to the roadway (21), of each buffer ditch (231) is obliquely arranged, a drain pipe is installed on the prefabricated bridge plate (2), and one end of the drain pipe is communicated with the buffer ditches (231);

s3, forming positioning grooves (52), and reserving a space for forming the positioning grooves (52) on the prefabricated bridge plate (2) when pouring the sidewalk (22) of the prefabricated bridge plate (2);

s4, mounting the prefabricated bridge plate (2), and after the piers (1) are mounted, fixedly mounting one prefabricated bridge plate (2) between two adjacent piers (1);

s5, installing a guardrail (3), wherein the guardrail (3) is formed by pouring concrete;

s6, installing a buffer assembly (4), wherein the buffer assembly (4) comprises a plurality of buffer plates (41) which are arranged at intervals, energy releasing plates (42) are installed on the sides, close to each other, of the buffer plates (41), the energy releasing plates (42) are fixedly bonded with the buffer plates (41) in an inclined state, the buffer plates (41) are connected together through the energy releasing plates (42), the energy releasing plates (42) between every two adjacent buffer plates (41) are fixedly bonded, and a V-shaped structure is formed;

s7, the buffer components (4) are slidably mounted on the buffer belt (23) to enable the buffer plate (41) and the guardrail (3) to be parallel to each other, a plurality of groups of buffer components (4) are arranged, and the buffer components (4) are uniformly distributed along the length direction of the bridge;

s8, installing a buffer plate (41) close to the sidewalk (22) on the sidewalk (22), fixedly connecting a positioning rod (51) on one side, close to the sidewalk (22), of the buffer plate (41), and enabling the positioning rod (51) to be in sliding connection with a positioning groove (52) on the sidewalk (22);

s9, a spring (6) is connected between the guardrail (3) close to the buffer plate (41) and the buffer plate (41), one end of the spring (6) is fixedly connected with the guardrail (3), and the other end of the spring (6) is fixedly connected with the buffer plate (41);

s10, a guide rod (411) is fixedly connected to a buffer plate (41) close to the guardrail (3), a movable hole (31) for the guide rod (411) to move is formed in the guardrail (3), the guide rod (411) is located in the movable hole (31), and a spring (6) is sleeved on the guide rod (411);

s11, the movable hole (31) penetrates through the guardrail (3), the plastic film (32) is coated on the guardrail (3), and one end, far away from the buffer plate (41), of the movable hole (31) is sealed by the plastic film (32).